Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5244336 | Mobile lifting apparatus with fork attachment | Melvin G. Stapel | 1993-09-14 |
| 4763800 | Mobile lifting apparatus | Gus J. Weber, Melvin G. Stapel, John J. Mlaker, Leonard Gordon Hanson | 1988-08-16 |
| 4381839 | Gantry having adjustable side supports | Gary V. Lorenz | 1983-05-03 |